e-STUDIO170F Circuit Description
January 2005 © TOSHIBA TEC
7 - 36
7.3.9
TX Motor Drive Circuit
Fig.7-27
The TX motor drive circuit consists of the ASIC (Engine controller: IC15), Motor driver (IC11), and other
peripheral devices. It drives the stepping motor connected to CN6 in a 2-phase excitation (STD, FINE) /
1-2 phase excitation (S-FINE) mode to transport a document in facsimile transmission and copy
modes.
The ASIC outputs the MT1A, MT1AX, MT1B, and MT1BX signals and the MISEL1 and MISEL2 signals
to the Motor driver. The Motor driver generates the TXA, TXAX, TXB and TXBX signals based on the
input signals and outputs them to the TX motor. The TX motor is driven in steps according to the input
drive phase signals.
Signal Name
Type
Active
Description
Destination
MT1A, AX, B, BX
O
-
TX motor driver signals A, AX, B, BX
Motor driver
MISEL1, 2
O
-
TX motor current control signals 1, 2
Q118, Q115
TXA, AX, B, BX
O
-
TX motor drive phase signals A, AX, B, BX
TX motor
Main PBA
CN6
TX motor
IC11
Motor
driver
TXA
TXAX
TXB
TXBX
+24VILS
+5V
NC
4
3
2
1
11
14
2
5
3,13
6
TX24V
TX24V
5
IC15
ASIC
(Engine controller)
MISEL2
29
Q115
R391
MISEL1
28
MT1A
24
1
6
10
15
MT1AX
25
1
2
5
6
7
3
Q118
R392
R378,R376
R377
R390
Q116
IC12
MT1B
26
MT1BX
27
Q114
IC12
F1
Содержание ESTUDIO170F
Страница 1: ...SERVICE MANUAL PLAIN PAPER FACSIMILE e STUDIO170F File No SME04002900 R04102171300 TTEC Ver01_2005 05 ...
Страница 2: ... 2005 TOSHIBA TEC CORPORATION All rights reserved ...
Страница 192: ...e STUDIO170F Function Settings January 2005 TOSHIBA TEC 4 132 ...
Страница 214: ...e STUDIO170F Mechanical Description January 2005 TOSHIBA TEC 5 22 ...
Страница 308: ...e STUDIO170F Circuit Description January 2005 TOSHIBA TEC 7 78 ...
Страница 372: ...e STUDIO170F Removal Replacement Adjustment January 2005 TOSHIBA TEC 8 64 ...
Страница 490: ...e STUDIO170F Appendix January 2005 TOSHIBA TEC 12 8 ...
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